#big{
	border: black 2px solid;
	margin: auto;
	padding: 20px;
	width: 550px;
	min-height: 600px;
}
#txtItem{
	margin: 5px;
	width: 530px;
	height: 80px;
	border-radius: 5px;
	outline: none;
	resize: none;
}
#txtName{
	margin: 15px;
	width: 150px;
	height: 30px;
	border-radius: 5px;
	outline: none;
	float: left;
}
li{
	list-style-type: none;
}
.facePic{
	width: 40px;
	height: 40px;
	float: left;
	margin-left: 15px;
	border-radius: 5px;
	overflow: hidden;
	/* background-color: #fff; */
	opacity: 0.5;
}
.facePic>img{
	width: 40px;
	height: 40px;
}
#face{
	float: left;
	padding: 0;
	margin: 10px;
}
#but{
	width: 500px;
}
#btn{
	outline: none;
	font-size: 20px;
	width: 100px;
	border-radius: 5px;
	background-color: darkgreen;
	color: #FFFFFF;
	float: right;
	cursor: pointer;
	/* 未生效 */
}
#txtNum{
	font-size: 16px;
	line-height: 30px;
	float: right;
	margin-right: 20px;
}
#up{
	margin-bottom: 50px;
}
#down{
	width: 550px;
}
#title{
	width: 548px;
	height: 40px;
	background-color: lightgray;
	border: 1px solid lightgray;
}
#titleTxt{
	width: 80px;
	height: 25px;
	border: 1px solid #fff;
	margin-left: 15px;
	margin-top: 14px;
	text-align: center;
	background-color: #FFFFFF;
	font-size: 18px;
	border-radius: 5px 5px 0 0;
}
#ulItem{
	padding: 0;
	margin: 0;
}
.faceDiv{
	width: 60px;
	height: 60px;
	overflow: hidden;
	border-radius: 5px;
	display: inline-block;
}

.faceDiv>img{
	width: 60px;
	height: 60px;
}
#ulItem>li{
	padding-left: 10px;
	padding-bottom: 15px;
	margin-top: 15px;
	border-bottom: 1px dashed lightgray;
	width: 550px;
	overflow: scroll;
}
.say{
	width:470px;
	margin-top: 0;
	margin-bottom: 0;
	overflow: scroll;
}
.time{
	width: 300px;
}
.right{
	width: 470px;
	float: right;
}
.right span{
	float: right;
	font-size: 12px;
	color: lightgray;
	margin-right: 20px;
	opacity: 0;
	transition: all 500ms;
	cursor: pointer;
}
.right:hover span{
	opacity: 1;
}
#face img {
	cursor: pointer;
	margin-right: 6px;
	opacity: 0.3;
}

#face img.hover,
#face img.current {
	border: 1px solid #f60;
	opacity: 1;
}